SOLUTION: Joann is placing books into boxes to prepare for a renovation of the school library. Joann packs library books at a rate of about 60 books every 8 minutes. She continues to work at

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Joann is placing books into boxes to prepare for a renovation of the school library. Joann packs library books at a rate of about 60 books every 8 minutes. She continues to work at      Log On


   

Question 1007761: Joann is placing books into boxes to prepare for a renovation of the school library. Joann packs library books at a rate of about 60 books every 8 minutes. She continues to work at the same rate.
How many minutes should Joann take to pack 15 books
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
use a ratio
+60%2F8+=+15%2Ft+
Divide top and bottom of the
left side by +4+
15%2F2+=+15%2Ft%29+
+t+=+2+
She takes 2 min to pack 15 books